Subdivsion (4) of Section 701.2 of Chapter 7 of the California Plumbing Code is amended to read:
701.2 Drainage Piping
Materials for drainage piping shall be in accordance with one of the referenced standards in Table 701.2 except that:
[. . .]
(4) Copper, copper alloys, lead and lead alloys, including brass, shall not be used for building sanitary drainage lines, connectors or seals coming in contact with sewage except for domestic waste sink traps and short lengths of associated connecting pipes where alternate materials are impracticable.
Where permitted by the building official or their designee, copper tube for drainage piping shall have a weight of not less than that of copper drainage tube type DWV.
[. . .]
(Ord. 5567 § 1 (part), 2022)